-59.56% is the change from 643 to 260
Calculation steps:
[( 260 - 643 ) ÷ 643] x 100 = -59.56%
Formula
Percentage change = [(260 - 643) / 643] x 100
Subtract the new number by the original number
260 - 643 = -383
-383 ÷ 643 = -0.5956454121306376
-0.5956454121306376 x 100 = -59.56%